Improvement in mould for casting sleigh-shoes



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JOI-IN W. DRYER, 0F MA CE'DON, NE W YORK.

Letters Patent No. 86,655, dated February 9, 1869.

'IMRROVEMENT IN MOULD FOR CASTING sLnIGHv-saons.

The Schedule referred to in these Letters Patent and making part of the same.

To all lwhom it may concern:

" To enable others to make and use my inventiorn will describe its construction and operation.

I make a mould, of cast-iron, the desired shape of the sleigh-shoe, having a bottom and two sides, as shown in iig. 2.

The sides are made as high as the chill is required to extend up and in the casting.

This mould is made in two or more sections, as shown in tig. l, and the parts are held together .by two or' more doWel-pins.

- As thciron runs into this mould, the part of molten iron coming iu contact with it becomes chilled, and consequently harder than if cast in sand.

If the mould is not made in sections, it is apt to spring by the heat of the casting, and it Will not be the proper shape for a sleigh-shoe.

I find, by a series of experiments, that, by makingY the mould in sections, the casting .does -not ai'ect it, and the sleigh-shoecools in the proper shape, as shown in fi". l.

The chilling cast-iron sleigh-shoes is a great object, where it can be done so as to have a proper thickness,

as it hardens them, so that they do not wear out as soon, and .causes the sleigh to slip over stones or bare spots more easily.

By my mode of making the mould for chilling, I am enabled to give any desired depth to the chill, and, at

the same time, keep the shoe the desired shape.

What I claim as my invention. and desire to secure by Letters Patent, is-

The mould for casting sleigh-shoes, constructed and arranged as shown and described.

' JOHN W. DRYER. Witnesses:

WM. S. LOUGHBOROUGH, JAS. LORENZO GAGE. 

